A Retrospective Clinical Study with Regard to Survival and Success Rates of Zirconia Implants up to and after 7 Years of Loading.

Roehling, Stefan; Woelfler, Henriette; Hicklin, Stefan; Kniha, Heinz; Gahlert, Michael (2016). A Retrospective Clinical Study with Regard to Survival and Success Rates of Zirconia Implants up to and after 7 Years of Loading. Clinical implant dentistry and related research, 18(3), pp. 545-558. Blackwell 10.1111/cid.12323

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PURPOSE The study aims to retrospectively investigate the clinical performance of first-generation zirconia implants with a sandblasted surface up to and after 7 years of loading. MATERIALS AND METHODS Clinical records of patients treated with zirconia implants between 2004 and 2009 were screened. Consequently, adequate patients were invited to a clinical and radiographic investigation to classify each implant according to strict success criteria. RESULTS Seventy-one patients receiving 161 implants were available for the evaluation. Overall, 36 implants (22.4%) were lost due to early (n = 14) and late failures (n = 4) or fractures (n = 18). All surviving 125 implants fulfilled the success criteria. None of the investigated implants had a history of peri-implant infections. Mean values with regard to gingival index, plaque index, modified sulcus bleeding index, and probing depth were 0.03, 0.23, 0.59, and 2.80 mm, respectively. The radiographically evaluated mean crestal bone loss was 0.97 ± 0.07 mm. Diameter-reduced implants (3.25 mm) showed lower survival (58.5%) compared with implants with a diameter of 4.0 mm (88.9%) and 5.0 mm (78.6%). The overall longitudinal survival rate was 77.3%. CONCLUSIONS First-generation zirconia implants showed low overall survival and success rates. The evaluated clinical and radiographic parameters were consistent with healthy peri-implant tissues. Additionally, nonfractured failures were not associated with peri-implant infections.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > School of Dental Medicine > Department of Reconstructive Dentistry and Gerodontology
04 Faculty of Medicine > School of Dental Medicine > Division of Fixed Prosthodontics [discontinued]

UniBE Contributor:

Hicklin, Stefan

Subjects:

600 Technology > 610 Medicine & health

ISSN:

1523-0899

Publisher:

Blackwell

Language:

English

Submitter:

Eveline Carmen Schuler

Date Deposited:

23 Jan 2017 08:52

Last Modified:

24 Sep 2017 12:16

Publisher DOI:

10.1111/cid.12323

PubMed ID:

25801578

Uncontrolled Keywords:

clinical study, implant survival, implantology, long-term study, long-term survival, retrospective, sandblasted, success rate, survival rate, zirconia

BORIS DOI:

10.7892/boris.91267

URI:

https://boris.unibe.ch/id/eprint/91267

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